20 mL to Cups
0.08 US cups, 0.08 metric cups
20 ml is 0.08 US cups, or 0.08 metric cups.
Millilitres and cups both measure volume, so this conversion does not depend on the ingredient — 20 ml of oil and 20 ml of water are the same amount of liquid. What it does depend on is whose cup the recipe means.
20 ml in every cup size
A cup is not one measurement. The US customary cup is 236.6 ml; the metric cup used across the UK, Australia, New Zealand and Canada is 250 ml; older British books use a 284 ml imperial cup; Japanese recipes use 200 ml.
| Cup | Size | Where it is used | 20 ml is |
|---|---|---|---|
| US customary cup | 236.6 ml | United States | 0.08 cups |
| US legal cup | 240 ml | US nutrition labels | 0.08 cups |
| Metric cup | 250 ml | UK, Australia, New Zealand, Canada | 0.08 cups |
| Imperial cup | 284.130625 ml | Older British recipes | 0.07 cups |
| Japanese cup | 200 ml | Japanese recipes | 0.1 cups |
20 ml in other volume units
| Unit | Amount |
|---|---|
| Millilitres | 20 ml |
| Litres | 0.02 L |
| US cups | 0.08 cups |
| Metric cups | 0.08 cups |
| Tablespoons (US) | 1.35 tbsp |
| Teaspoons (US) | 4.06 tsp |
| Fluid ounces (US) | 0.68 fl oz |
| Fluid ounces (imperial) | 0.70 imp fl oz |
| Pints (US) | 0.042 pt |
What 20 ml weighs
Millilitres measure space and grams measure weight, so there is no single answer — except for water, which is close enough to 1 gram per millilitre that 20 ml weighs 20 g. Oil is 5–9% lighter depending on the oil, milk a few percent heavier, honey nearly half as heavy again.
| Liquid | Grams per ml | 20 ml weighs |
|---|---|---|
| Water | 1.00 | 20 g |
| Milk (whole) | 1.03 | 21 g |
| Heavy Cream | 1.01 | 20 g |
| Vegetable Oil | 0.95 | 19 g |
| Olive Oil | 0.91 | 18 g |
| Honey | 1.44 | 29 g |
| Maple Syrup | 1.36 | 27 g |
| Buttermilk | 1.04 | 21 g |
| Coconut Milk | 1.01 | 20 g |
| Almond Milk | 1.01 | 20 g |
Frequently asked questions
How many cups is 20 ml?
20 ml is 0.08 US customary cups. If your recipe uses a 250 ml metric cup — the standard in the UK, Australia, New Zealand and Canada — it is 0.08 metric cups.
Is 20 ml the same in US and metric cups?
No. A US cup is 236.6 ml and a metric cup is 250 ml, about 5.7% larger, so the same 20 ml fills 0.08 US cups but only 0.08 metric cups.
How many tablespoons is 20 ml?
20 ml is 1.35 US tablespoons, or 4.06 teaspoons. A US tablespoon is 14.79 ml and a teaspoon is 4.93 ml.
How much does 20 ml weigh?
It depends on the liquid. 20 ml of water weighs almost exactly 20 g. Oil is lighter and honey is much heavier.